Why it works: Chestnut and flour match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 517 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Cream of Chestnut Soup
Ingredients
Directions
Make the soup
Boil the steamed chestnuts in the white broth until tender.
Mash the chestnuts finely and pass them through a sieve.
Add the heavy cream and season with salt and pepper.
If the soup is not thick enough, mix the flour and butter together and add to the soup.
Serve
Serve hot.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Chestnut + flourtop 6% of all pairsSmell alikestrongCooked together517 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Chestnut + peppertop 13% of all pairsSmell alikemoderateCooked together826 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Chestnut + creamtop 19% of all pairsSmell alikemoderateCooked together643 recipes
Shared aroma: octanal (fat, soap).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Steamed chestnuts
- Provide the main body and flavor, becoming smooth when boiled and mashed.
- Heavy cream
- Adds richness and a silky texture to the finished soup.
- Flour
- Thickens the soup when cooked in with the butter.
- Butter
- Adds fat and richness, and combines with flour to help thicken the soup.
The step that matters
Passing the chestnuts through a sieve. Chestnuts that are not mashed finely and sieved stay grainy, so the soup lacks a smooth texture. Thorough mashing breaks down the starch and fibres for a silky result.
Swap the chestnut
How well each one fits the dish's main ingredients (cream, flour, butter, pepper):
- Almondfits better
- Pistachiofits about as well
- Chestnutthe original
- Cashew nutfits about as well
Fit is the average pairing score against cream, flour, butter, pepper. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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